Short answer: EXIF data is a block of hidden information stored inside a photo file. Your phone or camera writes it at the moment you take the picture. It can hold the camera model, the date and time, the exposure settings, a small preview image and, if location was on, the GPS coordinates of where you stood. You cannot see it by looking at the picture, but anyone who has the original file can read it in seconds with a free EXIF viewer.
This guide covers what is in it, who can see it, where it survives and where it gets removed, and when it matters for your privacy. It is written for beginners, not as a technical reference.
What EXIF stands for
EXIF is short for Exchangeable Image File Format. It is a standard published jointly by two Japanese industry groups, CIPA and JEITA. CIPA lists the current edition as Exif Version 3.1 (CIPA standards list).
You do not need to read the standard. What matters is that almost every camera and phone follows it, so an EXIF reader can understand photos from any brand.
Think of a photo file as two parts: the picture itself (the pixels) and a label attached to it (the metadata). EXIF is the most common kind of label.
What EXIF data holds
Not every photo has every field. A photo straight from a phone usually has more than a photo saved from a website. Here are the main groups.
Camera and device
- Make and model, for example the phone brand and model name.
- Lens details, on phones with more than one lens.
- Software, such as the system version or the editing app that last saved the file.
- On some cameras, a serial number. The EXIF standard has a field for the camera body's serial number (ExifTool EXIF tag list). Many phones leave it empty, but some cameras fill it in.
Date and time
- When the photo was taken (the field is called DateTimeOriginal).
- Often a time zone offset, so the time can be read as local time.
- The GPS section can carry its own timestamp too.
Camera settings
- Aperture, shutter speed and ISO.
- Focal length, flash and white balance.
- Orientation, which tells apps which way is up.
Photographers use these to learn from their shots. For most people they are harmless.
Location (GPS)
If location was on for the camera, the file stores latitude and longitude, and often altitude and the direction the camera faced. This is the part that matters most for privacy. Our complete guide to GPS metadata covers the GPS fields in detail.
A small preview image
Many files carry a thumbnail, a tiny copy of the photo, inside the metadata. ExifTool lists where it sits in the file as ThumbnailOffset. Some editors update the thumbnail when you crop. Some do not. If it is not updated, a small version of the uncropped picture can still be inside the file.
How EXIF differs from IPTC and XMP
You may see these two names next to EXIF in a viewer. The short version:
| Type | Who usually writes it | Typical content |
|---|---|---|
| EXIF | The camera or phone, when the photo is taken | Device, time, settings, GPS |
| IPTC | Photographers, agencies, newsrooms | Caption, creator, credit, copyright |
| XMP | Editing apps | A flexible container for many fields, including edit details and copyright |
IPTC describes its standard as covering "administrative, descriptive, and copyright information about images" (IPTC). Adobe describes XMP as "a file labeling technology that lets you embed metadata into files themselves", and it is published as ISO 16684-1 (Adobe XMP docs).
In practice the three overlap. A file can hold the same date or copyright line in more than one place. That is why removing one block is not always enough.
A newer kind of label is content credentials (C2PA), which record where an image came from and how it was edited. Our blog has a separate guide on content credentials if you want to know more.
See what your photo is actually revealing
Drop a photo to view its GPS location and full EXIF. Everything runs in your browser — the file never leaves your device.
Read in your browser. Your photo is not uploaded or stored.
Who can see your EXIF data
Anyone who gets the original file. That includes:
- The person you email it to.
- Anyone who downloads it from a cloud folder link you shared.
- Visitors to a website, if the site serves the original file without removing metadata.
People who only see a re-saved copy may get nothing. Many social apps make a new copy of the photo on upload and drop most metadata on the way. That varies by app and by how you send, so check which apps strip EXIF data rather than guessing.
The apps on your own phone read it too. That is how your gallery sorts photos by date and shows a map of your trips.
Where EXIF is kept and where it is removed
A simple rule: EXIF stays with the file as long as the file is copied as it is. It tends to disappear when an app makes a new file from the picture.
Usually kept:
- Copying the file to a computer, a USB drive or cloud storage.
- Sending it as an email attachment or as a file.
- Sending it with an option that shares the original file.
Often removed or reduced:
- Uploads to platforms that re-save images.
- Screenshots, because a screenshot is a new image of your screen, not the original file.
- Some export and "save for web" settings in editing apps.
"Often" is the honest word here. Apps change, and the same app can behave differently depending on the option you pick. The only way to be sure is to check the file you are about to share.
How to view your EXIF data
On your phone
On iPhone, open a photo in Photos and swipe up or tap the info button to see the date, the camera and a map if there is a location. On Android, most gallery apps have a Details or Info view, but menu names vary by brand.
These views show a summary, not every field. They can also show a location that did not come from the file. Google says Google Photos can estimate a location "from information such as landmarks and locations in your other photos" (Google Photos Help).
In your browser
To see what is really inside the file:
- Open the EXIF viewer.
- Drop in a photo. It accepts JPEG, PNG, WebP, AVIF and HEIC.
- Read the results, grouped into sections such as camera, location and copyright. If there is GPS, it shows on a map.
The photo is read in your browser and is not uploaded. You can also download the metadata as a TXT or CSV file. For more ways to check, including on Windows and Mac, see how to check if a photo has location data.
When EXIF matters for privacy
Most EXIF fields are dull. Shutter speed will not hurt anyone. Three things can:
- GPS. A photo taken at home can point to your home. A set of photos can show a routine. Read can someone track you from a photo for the realistic risks.
- Time. The exact date and time, together with a location, show where you were and when.
- Device details. A model name, and on some cameras a serial number, can link photos to the same device.
It is worth checking first when you sell something from home, send photos to strangers, post original files on a blog or forum, or share photos of children.
How to remove EXIF data
There are two different jobs here:
- Stop it for new photos. Turn off location for your camera app. This stops GPS being saved from now on. It does nothing for photos you already took.
- Remove it from a photo you have. In the EXIF viewer, the Strip metadata button downloads a clean copy with EXIF, GPS and copyright fields removed. The original on your device is not changed.
If you only care about location, use remove GPS from a photo. For steps on each device, see how to remove EXIF data from photos.
Limits to keep in mind
- EXIF can be edited. A date or a location in a file is a clue, not proof.
- No viewer reads every field ever made. Some brands store extra data in their own formats.
- Removing metadata does not change the picture. A street sign or a house number in the frame still shows where you were.
- Copies you already sent keep whatever metadata they had.
Quick summary
- EXIF is hidden data inside a photo: device, time, settings, a preview and sometimes GPS.
- Anyone with the original file can read it.
- It survives plain copies and often disappears when an app re-saves the image.
- IPTC and XMP are other labels that can hold captions, credits and edit details.
- Check before you share. Drop a photo into the free EXIF viewer to see what yours contains, and strip it if you do not want it to travel with the file.